Originally posted by: DB_Hunter
Seems pretty good. Search for maps of the Caliphate through history. There were four main Caliphates (one after the other): Khilafah Rashida, Ummayad Khilafah, Abbasid Khilafah and the Uthmani (Ottoman) Khilafah.

Edit: If you want I can try to help you with the arabic terms. PM me if you want me to help out.
I think I'm getting the gist of most of it. If I have any trouble, I may take you up on that offer. Thanks.